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(No Model.)

J. W. MOGANDLESS. AUXILIARY RIFLE BARREL FOR GUNS.

" No. 439,543. Patented 0013.28, 1890.

INVENTOH:

A TTORNEYS UNITED STATES PATENT OFFICE.

' JAMES XV. MGCANDLESS, OF FLORENCE, COLORADO, ASSIGNOR OF ONE-HALF TO WILLIAM F. VENARD, OF SAME PLACE.

AUXILIARY RIFLE- BARREL FOR GUNS.

SPECIFICATION forming part of Letters Patent No. 439,543, dated October 28, 1890.

Application filed March 25, 1890 To all whom it may concern.

Be it known that I, JAMES WV. MCOAND- LESS, of Florence, in the county of Fremont and State of Colorado, have invented a new and useful Auxiliary Rifle-Barrel for Guns, of which the following is a full, clear, and exact description.

My invention relates to an auxiliary riflebarrel for guns, and has for its object to provide a device whereby hunters will be enabled, when desirable, to expeditiously convert any ordinary center-fire breech-loading rifle into a weapon of smaller bore-to a twenty-two caliber, for instance. A further object of the invention is to provide an auxiliary barrel which maybe extracted by the extractor of the gun to which it is applied, and wherein the said auxiliary barrel will be provided with its own cartridge-extractor.

The invention consists in the novel construction and combination of theseveral parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming apart of this specification, in which similar figures and letters of reference indicate corresponding parts in all the views.

Figure 1 is a longitudinal vertical section through the auxiliary barrel, illustrating the cartridge contained within the same and the firing-pinin position for firing. Fig. 2 is an exterior view of the barrel, the breech-sleeve being removed and the extractor appearing in non-operative position. Fig. 3 is a similar view illustrating the extractor in its opera tive position. Fig. 4 is a transverse section on lineet 4 of Fig. 3. 1 Fig. 5 is an end View of the barrel. Fig. 6 is a section on line 6 6 of Fig. 3. Fig. 7 is a side elevation of the extractor removed from the barrel, and Fig. 8 is a front view of the said extractor.

The body of the device consists of a shell 10, provided at the breech with a detachable sleeve 11, preferably screwed upon the body and having formed thereon an annular flange 12, whereby the breech of the device is made to resemble an ordinary cartridge-shell. The exterior of the body is made of a contour to accurately fit into any standard breech-load- $erial No. 345,254. (No model.)

as snugly. The barrel is reduced in circumference at the breech, and is provided with a thread 15 to receive the sleeve 11. The breechopening 16 is made conical.

duced face 17 of the barrel a longitudinal rectangular channel 18 is produced, which is connected by a smaller channel with a recess 19, extending down into the conical breechsegmental, as shown at a, in Figs. 4 and 6.

In the channel 18 the cartridge-extractor A is held to slide, the said extractor consisting of a bodysection 20, curved transversely,

ing to the width of the channel connecting the main channel 18 with the recess 19. At the inner end of the body-section a T-head 21 is formed of suitable width to slide in the which is preferably reduced in width, and upon the under face of said bodya downwardly-extending segmental extracting-arm 22 is formed, which extracting-arm is adapted to when the extractor is in its inner position of rest, as illustrated in Fig. 1 and 2.

To the outer end of the extractor a conical breech-cap 23 is hinged, which breech-cap is opening 16. The breech-cap is provided. with a firing-pin 24 capable of lateral movement, as illustrated in Fig. 1, the butt or head of which pin is located at the center of the cap.

auxiliary barrel, the firing-pin is placed in a is a rim-fire the firing-pin is placed in the diagonal position illustrated in Fig. 1, the butt the center of the outer face of the cap. The cap may be readily detached from the extractor and another one attached to accommodate the cartridge employed.

similar manner to a cartridge, and fits about In the upper surface of the smooth reopening, the inner wall of which recess is which body-section is of a width correspondchannel 18, and near the outer end of the body, 7 5

fit in the segmental portion a of the recess 19 adapted to fit snugly into the conical breech- When a center-fire cartridge is used in the horizontal position; but when the cartridge or head of the pin appearing at all times at The sleeve 11 when fitted upon the shell IOO covers the slideway of the extractor, and when the breech-opening is closed by the breechcap the outer face of the said cap is preferably flush with the flanged edge of the sleeve. The firing-pin is adapted to be acted upon by the needle of the gun.

In Operation the auxiliary barrel is placed 7 in the barrel of the gun in similar manner to an ordinary cartridge, the breech-cap is thrown upward, for instance, by the thumbnail of the operator, a slot being formed therein for that purpose, as shown in Fig. 5, and the cartridge to be fired is inserted in the bore of the barrel, as shownin Fig. 1, whereupon the rim of the cartridge is brought in contact with the outer face of the extractingarm 22 of the extractor. The cap is then closed and made to cover the breech-opening in the barrel, and the gun is ready to be dis charged. After firing, to extract the cartridge-shell, the gun having been opened to. expose the breech of the auxiliary barrel, the cap is thrown up, grasped by the operator,

and drawn toward the stock, carrying with it the extractor A, and as the arm 22 of said extractor engages with the inner face of the cartridge-shell rim the said shell is drawn out entirely from the'barrel or a sufiicient distance to be removed by the fingers, as desired.

When the auxiliary barrel is used in connection with magazine-guns, the barrel should j be no longer than the cartridge fitting the" For single-shot guns the barrel may. be made any convenient length to enable the- ]user to carry the device in a belt or in a pocket. The obvious benefits of this device are that thehunter may kill small game without alarming larger game that might be in the neighborhood, the cost of ammunitionis much less, and the risk of tearing and mu-' gun.

tilating small game-always incurred when a gun of large caliber is used-is avoided.

It will be observed that my improved auxiliary barrel is provided with its own shellextractor, which operates entirely independent of the shell-extractor of the gun to which the barrel is applied, and that by forming the breech of the barrel with a flange similar to a cartridge-shell the said auxiliary barrel may be removed from the main barrel of the gun by the extractor forming a portion of the un. a Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. As an improved article of manufacture, an auxiliary barrel for breech-loading guns,

consisting of a properly-bored shell or body opening in the shell, substantially as shown and described.

3. The combination, with a properly-bored auxiliary barrel provided with a conical breech-opening, of a cartridge shell extractor held to slide in a channel in the shell and provided with a downwardly-extending arm for engagement with the flange of they cartridge-shell, and a conical breech-cap carrying a firing-pin attached to the outer end of the extractor, substantially as shown and described.

4. The combination, with an auxiliary barrel and a shell-extractor held to slide in said barrel, of a breech-cap provided with a firingpin attached to the said extractor near its outer end, substantially as shown and described, and for thepurpose specified.

JAMES W. MCGANDLESS.

Witnesses: L. L. PERCIVAL,

J. M. HANKS. 

